Fix MA rendering and simplify signal UI

- Fixed MA plot ID to match return structure (ma vs value)
- Moved Status and Last Signal display to main Indicator Analysis section
- Removed Signal Status section from expanded indicator config
- Simplified signal display to show only status icon/type and last signal date
- Removed strength and reasoning tooltips from signal display

src/api/dashboard/static/js/indicators/moving_average.js

@@ -153,7 +153,7 @@ export class MAIndicator extends BaseIndicator {
         const maType = (this.params.maType || 'SMA').toLowerCase();
         const period = this.params.period || 44;
         
-        let maValues;
+let maValues;
         
         switch (maType) {
             case 'sma':
@@ -176,6 +176,42 @@ export class MAIndicator extends BaseIndicator {
         }
         
         return maValues.map(ma => ({ ma }));
+
+    getMetadata() {
+        return {
+            name: 'MA',
+            description: 'Moving Average (SMA/EMA/RMA/WMA/VWMA)',
+            inputs: [
+                {
+                    name: 'period',
+                    label: 'Period',
+                    type: 'number',
+                    default: 44,
+                    min: 1,
+                    max: 500
+                },
+                {
+                    name: 'maType',
+                    label: 'MA Type',
+                    type: 'select',
+                    options: ['SMA', 'EMA', 'RMA', 'WMA', 'VWMA'],
+                    default: 'SMA'
+                }
+            ],
+            plots: [
+                {
+                    id: 'ma',
+                    color: '#2962ff',
+                    title: 'MA',
+                    style: 'solid',
+                    width: 1
+                }
+            ],
+            displayMode: 'overlay'
+        };
+    }
+        
+        return maValues;
     }
     
     getMetadata() {